I must depressurize you must depressurize he must depressurize we must depressurize you must depressurize they must depressurize
V-ing form
I must be depressurizing you must be depressurizing he must be depressurizing we must be depressurizing you must be depressurizing they must be depressurizing
Perfect
I must have depressurized you must have depressurized he must have depressurized we must have depressurized you must have depressurized they must have depressurized
V-ing perfect
I must have been depressurizing you must have been depressurizing he must have been depressurizing we must have been depressurizing you must have been depressurizing they must have been depressurizing
Negation
Simple form
I must not depressurize you must not depressurize he must not depressurize we must not depressurize you must not depressurize they must not depressurize
V-ing form
I must not be depressurizing you must not be depressurizing he must not be depressurizing we must not be depressurizing you must not be depressurizing they must not be depressurizing
Perfect
I must not have depressurized you must not have depressurized he must not have depressurized we must not have depressurized you must not have depressurized they must not have depressurized
V-ing perfect
I must not have been depressurizing you must not have been depressurizing he must not have been depressurizing we must not have been depressurizing you must not have been depressurizing they must not have been depressurizing
Interrogative form
Simple form
must I depressurize? must you depressurize? must he depressurize? must we depressurize? must you depressurize? must they depressurize?
V-ing form
must I be depressurizing? must you be depressurizing? must he be depressurizing? must we be depressurizing? must you be depressurizing? must they be depressurizing?
Perfect
must I have depressurized? must you have depressurized? must he have depressurized? must we have depressurized? must you have depressurized? must they have depressurized?
V-ing perfect
must I have been depressurizing? must you have been depressurizing? must he have been depressurizing? must we have been depressurizing? must you have been depressurizing? must they have been depressurizing?
Interro-negative form
Simple form
must I not depressurize? must you not depressurize? must he not depressurize? must we not depressurize? must you not depressurize? must they not depressurize?
V-ing form
must I not be depressurizing? must you not be depressurizing? must he not be depressurizing? must we not be depressurizing? must you not be depressurizing? must they not be depressurizing?
Perfect
must I not have depressurized? must you not have depressurized? must he not have depressurized? must we not have depressurized? must you not have depressurized? must they not have depressurized?
V-ing perfect
must I not have been depressurizing? must you not have been depressurizing? must he not have been depressurizing? must we not have been depressurizing? must you not have been depressurizing? must they not have been depressurizing?